In his memoir Grand to Be an Orphan,[2] Slonim recalled that while the Orphanage offered educational opportunities, some of the staff also dished out beatings.
With Orphanage support, Slonim studied at a yeshivah in Chicago and attended the Illinois Institute of Technology, where he received his B.S.A.S.
Until the newspaper's demise in 1971 and later in the Jewish Standard, Slonim often attacked Orthodox influence on Israeli politics and Israel's treatment of Palestinians.
Slonim attracted younger, Canadian-born congregants but, to the consternation of some, he also used his pulpit to condemn Israeli policy.
[citation needed] He subsequently co-founded the Association for the Living Jewish Spirit, which until 1999 met on High Holidays.
In addition to his two memoirs, Slonim published In the Steps of Pope Paul[7] (1965), an account of Pope Paul's visit to the Middle East; Both Sides Now[8] (1972) summarizing his career at the Toronto Telegram, and Family Quarrel: The United Church and the Jews[9] (1977) chronicling disputes over Israel between the Jewish community and the United Church.